Carding device for interchangeable artificial teeth



D. E. EVANS JILWS CARDING DEVICE FOR INTERCHANGEABLE ARTIFICIAL TEETHFiIed March 9, 1956 Sheets-Sheet l .INVEN TOR. Dav/d L EVd/ZS.

BY m w ATTORNEYS.

15, 1938. D, EVANS 2,111,095

CARDING DEVICE FOR INTERCHANGEABLE ARTIFICIAL TEETH Filed March 9, 19563 Sheets-Sheet 2 I INVENTOR. flay/a E fwd/7s.

9'- M ATTORNEYS.

I5, 1938. D. E. EVANS 1 2,111,995

CARDING DEVICE FOR INTERCHANGEABLE ARTIFICIAL TEETH Filed March 9, 19:563 Sheets-Sheet s JNVENTOR. Dav/0 5 Evans.

A TR

Patented Mar. 15, 1938 states NE'EE.

PATENT OFFICE CARDING DEVICE FOR INTERCHANGEABLE ARTIFICIAL TEETHApplication March 9, 1936, Serial No. 67,?92

13 Claims.

My invention relates to a carding device for interchangeable artificialteeth. It has to do, more particularly, with a device for supporting anumber of such teeth in order that they may be conveniently handled orshipped and in order that they may be conveniently and attractivelydisplayed.

Certain interchangeable teeth are provided with slots in the rear orundersurfaces thereof in order that they might be secured to crown andbridgework. Consequently, many carding devices used in the past haveembodied a plurality of lugs mounted on cards or other suitable supportswhich cooperate with the slots in the artil5" ficial teeth for mountingthe teeth on such cards or supports. At first these lugs were made ofmetal. However, the metal lugs tended to chip the teeth unless the teethwere removed and replaced on the device with extreme care. In order toovercome this disadvantage, the metal lugs have, in some cases, beenreplaced by lugs formed of paper or cardboard or other flexiblenon-metallic material. In one form, these lugs were formed by providinga strip of paper or cardboard and doubling it at intervals and thenpassing the doubled portions through slots in a card or support in orderto form yieldable lugs projecting through the card adapted to fit intothe slots in the teeth in order to hold the teeth 3 on the card. Thisstructure is much more suitable than the metallic lug structure but hascertain disadvantages.

The paper or cardboard lugs are not inherently resilient but areresilient merely as a result of being bent into loop form. Consequently,careless placement of teeth on the lugs or careless removal tends tocause the paper lugs to be forced out of shape and they do not return;to their original shape. After they lose their shape they will noteffectively hold the teeth in place. After the teeth have been removedand replaced a number of times, the paper lugs will ravel or fray.Consequently, they cannot be used for any considerable length of time.

One of the objects of my inventionv is to provide a carding device whichis provided with means for effectively mounting the teeth thereon, saidmeans being of such a nature that the teeth will not be injured, as bycracking or chipping, regardless of Whether or not care is used inapplying the teeth to the device or removing them therefrom.

Another object of my invention is to provide a carding device of thetype indicated which is provided with means for receiving and retainingthe teeth, said means embodying lugs which will retain their originalshape, and which will not wear to any appreciable extent because ofconstant removal and replacement of the teeth.

In its preferred form my invention contemplates the. provision of acarding device embodying a back member of suitable material and a frontmember of suitable material. Between the back and front members, anothermember is disposed which carries a plurality of lugs formed ofinherently resilient material, such as rubber. These lugs projectthrough a plurality of slots formed in the front member. The inherentlyresilient lugs project from the front member a considerable distance andare adapted to project into the. slots formed in the rear surface orundersurface of the teeth adapted to be mounted thereon. Because thelugs are formed of inherently resilient material, regardless of how theteeth are applied to the device or removed therefrom, there will be noinjury either to the teeth or to the lugs.

The preferred embodiment of my invention is illustrated in theaccompanying drawings where.- in similar characters of referencedesignate corresponding parts and wherein:

Figure l is a perspective view of a carding device made in accordancewith my invention showing how teeth may be mounted thereon.

, Figure 2 is a perspective view illustrating the various parts of thedevice shown in Figure 1 in disassembled relationship.

Figure 3 is a transverse section taken through the device illustrated inFigure 1.

Figure e is a more or less diagrammatic view 35 illustrating how a toothmay be pulled off one of the resilient lugs.

Figure 5 is a similar view illustrating how the inherently resilient lugacts to maintain the tooth on the device.

Figure 6 is a side elevation of the device shown in Figure 1illustrating by the arrows various ways in which the tooth may beremoved from the lug.

Figure 7 is a view in perspective illustrating a member for supporting aplurality of the carding devices of the type shown in Figure 1, one ofsuch devices being shown mounted thereon.

Figure 8 is a view illustrating the preferred way of mounting the toothon the inherently resilient lug, the tooth being shown partly brokenaway.

Figure 9 is a perspective view of a carding device similar to thatillustrated in Figure l but designed for supporting a different type oftooth.

Figure is a perspective view of a carding device for supporting a largenumber of teeth, for example for shipping purposes, or for keeping ofstock.

Figure 11 is a perspective view, partly broken away, illustrating atooth-retaining lug of slightly different shape.

Figure 12 is a perspective view of a member like that shown in Figure 7for holding a plurality of the carding devices of the type shown inFigure 1, the member being provided with resilient clips for normallyholding the carding devices in position thereon.

Figure 13 is a perspective view of a portion of one of the. spring clipsadapted to be disposed on the member illustrated in Figure 12.

Figure 14 is a vertical section taken through a portion of the deviceillustrated in Figure 12 and showing how the spring clip functions.

With reference to the drawings and particularly to Figures 1, 2 and 3, Ihave shown my carding device as comprising a back plate I ofsubstantially rectangular form. This back plate I is preferably made ofaluminum. It is elongated and has a flange 2 on each longitudinal edge,each flange being bent upwardly from the plate I and then inwardlytowards the longitudinal center line thereof. Adjacent one of thelongitudinal edges of the plate I it is provided with three circularapertures 3.

I provide a member 4 which is adapted to be mounted on the back plate.This member 4 is of substantially the same size as the back plate I. Itcomprises mainly a sheet or strip of rubber or other inherentlyresilient material. I preferably use white rubber. This member 4 isadapted to be positioned on the back plate I between the flanges 2, asindicated. On the rear surface of this member I provide three bosses 5which are formed integral therewith and. project rearwardly therefrom.These bosses are properly spaced apart so that when the member 4 ismounted on back plate I, they will project through the openings 3. Asshown in Figure 3, they project rearwardly through the openings 3 aconsiderable distance. Thus, the bosses 5 will cooperate with theapertures 3 to maintain the member 4 in position on the member I and toprevent relative longitudinal movement therebetween. These bosses haveother functions which will be referred to hereinafter.

The member 4, at a point adjacent its lower edge, is provided on itsface with a plurality of lugs E which project forwardly therefrom aconsiderable distance. These lugs are disposed in a row atlongitudinally spaced intervals. The lugs are formed as an integral partof the member t and are of the same material. Consequently, they areinherently resilient. Each lug is of narrow elongated cross-section. Oneof the ends of each lug 6 is chamfered as at I, see Figure 8, in orderto facilitate application of a tooth thereto.

A front member 8 is adapted to cover the member 4. This front member 8is preferably made of cardboard or other suitable material. It is ofsubstantially the same size as the member 3 and is adapted to be mountedin covering relation ..16l6l30 as indicated in Figure 1. The member 8 isheld in position by the flanges 2 of the back plate I as indicated inthe drawings. Adjacent its lower edge the member 8 is provided with arow of longitudinally spaced slots 5. slots are so arranged and sospaced that the lugs t on member 4 will project therethrough as These Iindicated. At the point where the slots 9 are formed in member 8, it ispressed outwardly in order to form a shelf or ledge I9, as illustratedin the drawings. This ledge or shelf is provided for a' purpose to bedescribed hereinafter. The lugs 6, however, project from the member 4 asufficient distance so that they project through the slots 9 aconsiderable distance beyond the outer surface of the ledge or shelfIll. The card or front member 8 may have the brand or trademark of theteeth or other printed matter thereon. Adjacent its upper edge it isprovided with a pair of apertures II. These apertures expose the memberl so that it may be Written on at these points. It is sometimesdesirable to write certain indicia on the carding device in order toindicate the size, color, etc., of the teeth. With this structure, it ispossible to write on the portions of the member 3 disposed beneath theapertures H in member 8. Since the member 4 is made of white rubber, itmay be written on with pencil and the marks may be readily erased.

In Figure 1 I have illustrated how this device may be employed formounting a plurality of teeth. As shown best in Figures 4 and 5, eachtooth or facing I2. is provided with a narrow slot 53 formed in the rearsurface thereof. Directly in front of the slot I3 a post hole I 4 isformed in parallelism with and in communication with the slot. This posthole is of substantially circular cross-section. The slot I3 and thepost hole It are provided in order that the artificial tooth or facingmay be mounted on crown or bridge work in a well known manner. The slotand post hole extend from the gingival end of the facing or tooth to apoint spaced from the incisal end of the facing or tooth, as indicatedin Figures 1 and 8. Thus, the slot and post hole have their gingivalends open and their incisal ends closed. The slot and post hole togetherform What might be termed an undercut slot.

The facing or tooth is preferably mounted on the lug t in the mannerillustrated in Figure 8. That is, the tooth is positioned relative tothe carding device in such a manner that the chamfered end I of the lugwill first pass into the open end of the slot and post hole formed inthe tooth as indicated in this figure. Then, it is merely necessary toforce the tooth in the direction of the arrows of Figure 8 in order toforce the lug 6 completely into the slot and post hole of the tooth, atwhich time the chamfered end I of the lug will be disposed at the closedend of the slot as indicated in Figure l. The lug 5 is of slightlygreater width than the slot I3. Consequently, in positioning the toothon the lug, the inherently resilient lug must be compressed, asindicated in Figure 8. The tooth will be retained on the lug partly bythe pressure exerted against the walls of the slot 53, which pressure isproduced because of the inherent resilience of the lug which tends tocause it to expand to its original condition after having beencompressed in order to position the tooth thereon. However, as shown inFigure 5, the portion of the lug 6 which is positioned within the posthole I6 will have a tendency to spread out to its original width afterthe tooth is positioned on the lug. Consequently, since the lug 8 isnormally wider than the slot I3, this will form an enlarged portion 6awhich will be disposed within the post hole I 4 and Will not readilypass through the narrower slot I3, unless the tooth is actually forcedfrom the lug, so that this enlarged portion also assists in retention ofthe tooth.

It is preferable to remove the tooth by sliding it downwardly in adirection opposite to that indicated by the arrows in Figure 8. However,regardless of whether or not care is used in removing the tooth from thelug, or regardless of which direction the tooth is pulled to remove itfrom the lug, there will be no danger of injury either to the tooth orto the lug. This is because the lug is inherently resilient, beingpreferably made of rubber. The tooth may be pulled outwardly from thecard as indicated by the arrow in Figure 4, or moved longitudinally ofitelf as indicated in Figure 6, or may even be rotated from position.However, in no event will the tooth or the lug be injured. The same istrue in positioning the tooth on the lug. Regardless of how it is forcedon the lug, there will be no danger to the tooth or the lug. Since thelug is formed of inherently resilient material, it may be compressedduring the mounting of a tooth thereon or removal of a tooth therefrom,but will always expand to its original con diticn. Thus, the lug willnot get out of shape and will not fray or ravel or wear to anyconsiderable extent even after a tooth has been removed and replaced anexcessive number of times.

It will be noted from Figures 1, 3 and 6 that when a tooth is positionedon the lug it rests against the outer surface of the shelf in. The outersurface of this shelf is disposed outwardly beyond the outermost pointof the lower flange 2. Consequently, this flange will not interfere withremoval and replacement of the tooth.

In Figure 7 I have illustrated a member for holding a number of thecarding devices, for the keeping of stock, of the type illustrated inFigure 1. This member comprises a metallic plate 55 which is preferablymade of aluminum and is adapted to be placed in a drawer for the keepingof the carding devices in orderly arrangement irrespective of thejarring incident to the opening and closing of the drawer. The plate iscut and struck upwardly at a number of places to form a plurality ofspaced longitudinally extending flanges it and a plurality of stops ll.The flanges it are spaced apart a distance slightly greater than thewidth of the carding device. A step ii is disposed between each pair ofadjacent flanges l6. One of the carding devices is adapted to bepositioned between each pair of flanges it, as indicated. When a cardingdevice is positioned on member l5, as indicated in Figure '7, it will bein tilted position thereon due to the fact that the rubber bosses on itsback and adjacent one edge thereof will contact with the surface of themember l5. These rubber bosses raise the lower edge of the cardingdevice to such an extent that if the teeth are slipped on the lugs inthe proper manner as illustrated in Figure 8 and removed in the propermanner by slipping them in the opposite direction, there will be nointerference by the flange it. As

shown, the edge of the carding device from which the teeth arepreferably removed, will be disposed above the upper edge of theadjacent flange iii. The rubber bosses 5 serve another purpose. When thecarding device of Figure 1 is removed from the drawer and placed on atable or counter, the bosses 5 will prevent skidding of the device ifthe dentist or tooth clerk attempts to remove or replace a tooth withoneihand. In the handling of teeth and in theirselection for dentalcases, it is common practice to hold the model of the case in one handwhile a tooth is being removed from the card for trial selection withthe other hand. This non-skidding feature accomplished by the action ofthe bosses is a convenience and a time-saver to both the dentist and thetooth clerk.

In Figure 9, I have illustrated a different type of carding deviceadapted to be used for mounting a different type of tooth. This deviceis practically the same as that illustrated in Figure 1 with theexception that it is bent at an angle as at l8. However, it stillcomprises a back plate la, a rubber member to which carries the lug tand a front member or card to. It is provided with apertures lie formedin the front member 8a for exposing portions of the member ia upon whichindicia may be written. The portion of the front member 8a through whichlugs 6 project need not be raised in this instance as there will be nodanger of interference with the flanges 2 in positioning the type oftooth shown on this device. In this instance, the end la of the lug 6 ischarnfered to facilitate positioning of a tooth in thereon. This toothis provided with an undercut slot and, as before, the lug 5 willcooperate with the slot in the identical manner previously described.The openings 3 in the back plate of Figure 2 and the cooperating rubberbosses 5 need not be provided in this instance.

In Figure 10, I have illustrated a device upon which a large number ofteeth are adapted to be mounted, such as for the keeping of stock andfor shipping purposes. This device comprises a back card member lb and afront card member 8b, the front card 81) being struck outwardly at aplurality of vertically spaced intervals to form ledgesor shelves ltd onthe front surface thereof and corresponding grooves in the rear surfacethereof; These grooves are adapted to receive strips or ribbons ib whichare made of rubber or other inherently resilient material. Each strip orribbon ib is provided with a plurality of lugs 6 integrally formedtherewith and disposed at longitudinally spaced intervals. These lugs iiare of inherently resilient material and are exactly the same as thelugs previously described. The front member 33b is provided with a rowof slots 9b formed therein, in each ledge portion iiia. These slots 9bare spaced the same as the lugs 6 formed on member ib. Each of thestrips th is adapted to be positioned in the groove behind the ledge orshelf its and the lugs t are adapted to project through the slots 91).The lugs 8 project through the front Sb a sufficient distance so thatthey may be used in mounting teeth on the device, in the mannerpreviously described. The back member lb will cover all the ribbons dband will keep them position in the grooves formed in the back of thefront member 8b. The front member 8?) is provided with a pair ofopertures lib adjacent its upper end which expose portions of a card itdisposed behind front member 81;. This card it is of such a type thatsymbols may be written or printed thereon.

In Figure 11 I have illustrated tooth-retain ing lugs of slightlydifierent form. These lugs 59, like the lugs S, are formed of inherentlyresilient material such as rubber. They are exactly the same as the lugs3 previously described with the exception. that they are of differenttransverse cross-sectional outline. These lugs 50 are of dovetail orwedge-shape form in transverse cross-section. As indicated, the widestpart of the lug is disposed outermost. One end member of the lug E!) ischamfered as at T0. The narrowest part of this lug 60 preferably will beslightly wider than the slot I3 in the tooth. This lug will functionpractically the same as the lug G with the exception that when a toothis placed on this lug the wider outer edge on the lug will project intothe post hole 34 and will aid in retaining the tooth on the lug, asindicated at 600. in Figure 11.

I have found that in making the tooth-retaining members, embodying theintegral tooth-retaining lugs and the support from which they project,it is desirable to mix a suitable lubricating substance such as paraffinwith the rubber mixture before it is poured into the molds. When thismixture hardens and forms the tooth-retaining member, the parafiin atthe surfaces of the tooth-retaining lugs serves as a lubricant whichfacilitates slipping of the teeth on and off of the lugs. Of course,other suitable substances might be used. If such a lubricant is mixedwith the rubber it is desirable to remove the lubricant from the exposedportions of the tooth-retaining member upon which it may be desirable towrite with pencil.

In Figures 12, 13 and 14 I have illustrated a spring clip which isadapted to be employed with the member l5 of Figure 7 in order tonormally retain the carding devices, of the type illustrated in Figure1, thereon. This spring clip embodies a strip 20 which is preferablyformed of resilient metal. This strip 23 is cut and struck upwardly atlongitudinally spaced intervals to form a plurality of resilient tonguesor lugs 2!.

; Two of the members 29 are disposed behind each member E5 in order toretain thereon the two rows of carding devices disposed thereon. Eachmember 29 will rest against the rear surface of the member 55 and thetongues 25 formed thereon will project through the openings formed inthe member i5 adjacent the flanges i6. As indicated in Fig. M, thetongues 2! will frictionally engage the member 15 adjacent the flangesl6 and retain the carding device in position on E5. The tongues 2inormally extend outwardly and upwardly adjacent the flange 26, asindicated at' the top of Figure 14.

In positioning a carding device on the member 15 it is desirable toposition it as indicated in Figure 14. One edge of the carding devicewill bear against one of the flanges it while the other edge willcontact withone of the resilient tongues 21. In positioning the cardingdevice between the flange i 6 and the tongue 2! it is necessary to bendthe tongue towards its adjacent flange it. Thus, the carding device willbe firmly held by the resilient tongue 2i between the tongue and theflange it at the opposite edge of the carding device. It will beapparent that this is a simple device for normally holding the cardingdevices in position on the member l5. The carding devices will notaccidentally fall from the member 55 during removal or replacement fromthe drawer or even if the device I5 is turned upside-down. However, thespring clip is of such a structure that the carding devices may bereadily'removed from the member I? when desired.

It will be apparent from the above description that I have provided acarding device for artificial teeth having many advantageous features.The teeth may be removed and replaced from the carding device withoutdanger of injury to the teeth. Furthermore, because the lugs which areused for mounting the teeth are of inherently resilient material,regardless of whether or not care is used in applying the teeth andremoving them, the lugs will not be injured in any way. Various otheradvantages have been mentioned or will appear from the appended claims.

Having thus described my invention, what I claim is:

1. A carding device for artificial teeth each of which has a slot formedtherein comprising a body portion upon which the teeth are adapted to bemounted, means for mounting the teeth on said body portion, said meanscomprising a plurality of lugs of soft rubber which project from saidbody portion each of which is adapted to fit in a slot in a tooth andapproximates said slot in width.

2. A carding device for artificial teeth each of which has a slot formedtherein comprising a body portion upon which the teeth are adapted to bemounted, means for mounting the teeth on said body portion, said meanscomprising a plurality of lugs of soft rubber which project from saidbody portion, said lugs being of dovetail cross-section, each of saidlugs being adapted to fit in a slot in a tooth and approximating saidslot in width.

3. A carding device for artificial teeth each of which has a slotformedtherein comprising a body portion upon which the teeth are adaptedto be mounted, means for mounting the teeth on said body portion, saidmeans comprising a plurality of lugs of soft rubber which project fromsaid body portion, said lugs being of elongated form, one end of each ofsaid lugs being chamfered, each of said lugs being adapted to fit in aslot in a tooth and approximating said slot in width.

4. A carding device for artificial teeth each of which has a slot formedtherein comprising a member upon which the teeth are adapted to bemounted, means for mounting the teeth on said member, said meanscomprising a member formed of soft rubber and having a plurality of lugsof soft rubber projecting therefrom at intervals, said lugs projectingthrough corresponding slots formed in said first-named member, each ofsaid lugs being adapted to fit in a slot in a tooth and approximatingsaid slot in width.

5. A carding device for artificial teeth each of which has a slot formedtherein comprising a back member and a face member secured tor gether,means for securing the teeth in position on the face member, said meanscomprising a. member formed of soft rubber which is disposed betweensaid back member and said face member, said member having a plurality oflugs of soft rubber formed thereon at intervals which project throughcorresponding slots formed in said face member, each of said lugs beingadapted to fit in a slot in a tooth and approximating said slot inWidth.

6. A carding device for artificial teeth comprising a back member formedof metal, said back member having flanges formed along the edgesthereof, said back member having a plurality of openings formed thereinadjacent one edge thereof, a tooth retaining member mounted on said backmember between said flanges, said tooth retaining member embodying amain substantially flat portion which substantially covers said backmember, said tooth retaining member being formed of rubber and having aplurality of bosses formed on its rear surface which'project through theopenings formed in said back member, said tooth retaining member havinga plurality of lugs" integrally formed on its front surface adjacent thelower edge thereof, and a face member adapted to be mounted on said backmember between said flanges and to substantially cover said toothretaining member, said face member having a plurality of slots formedadjacent the lower edge thereof through which said lugs are adapted toproject, said face member having apertures formed therein for exposingportions of said tooth retaining member upon which symbols may bewritten.

7. A carding device for artificial teeth comprising a back member, saidback member hav-' ing a plurality of openings formed therein, a toothretaining member mounted on said back member, said tooth retainingmember embodying a main substantially flatportion which substantiallycovers said back member, said tooth retaining member being formed ofinherently resilient material and having a plurality of bosses formed onits rear surface which project through the openings formed in said backmember, said tooth retaining member having a plurality of lugsintegrally formed on its front surface, and a face member adapted to bemounted on said back member and to substantially cover said toothretaining member, said face member having a plurality of slots formedtherein through which said,

lugs are adapted to project, said face member having apertures formedtherein for exposing portions of said tooth retaining member upon whichsymbols may be Written.

8. A carding device for artificial teeth comprising a back member, saidback member having a plurality of openings formed therein, a toothretaining member mounted on said back member, said tooth retainingmember being formed of inherently resilient material, said toothretaining member having a plurality of bosses formed on its rear surfacewhich project through the openings formed in said back member, saidtooth retaining member having a plurality of lugs integrally formed onits front surface, and a face member adapted to be disposed over saidtooth retaining member, said face member having a plurality of slotsformed therein through which said lugs are adapted to project.

9. In combination, a carding device embodying a body portion havingmeans for securing a plurality of teeth on the face of said bodyportion, said body portion having a plurality of rubber bossesprojecting from the rear surface thereof, said bosses being disposedadjacent one edge thereof, and a member for holding said carding device,said member including a flat surface and a flange adapted to be disposedadjacent one edge of said carding device to limit movement thereof, saidbosses resting against said flat surface and supporting the cardingdevice in tilted position so that the edge adjacent said flange issubstantially flush with or above the upper edge of said flange.

10. In combination, a carding device embodying a body portion havingmeans for securing a plurality of teeth on the face of said bodyportion, said body portion having a plurality of rubber bossesprojecting from the rear surface thereof, said bosses being disposedadjacent one edge thereof, and a member for holding said carding device,said member including a flat surface and a flange adapted to be disposedadjacent one edge of said carding device to limit movement thereof, saidbosses resting against said fiat surface and supporting the cardingdevice in tilted position so that the edge adjacent said flange issubstantially flush with or above the upper edge of said flange, and aspring clip for holding said carding device in position on said member.

11. A carding device for artificial teeth each of which has a slotformed therein comprising a back member, a tooth retaining membermounted on said back member, said tooth retaining member embodying amain portion which substantially covers said back member, said toothretaining member being formed of soft rubber and having a plurality oflugs integrally formed on its front surface, and a face member adaptedto be mounted on said back member and to substantially cover said toothretaining member, said face member having a plurality of slots formedtherein through which said lugs are adapted to project, each of saidlugs being adapted'to fit in a slot in a tooth and approximating saidslot in width, said face member having aper-.

tures formed therein for exposing portions of said tooth retainingmember upon which symbols may be written.

12. A carding device for artificial teeth each of which has a slotformed therein comprising a face member, said face member having agroove formed in the rear surface thereof and a corresponding ledgeformed on the front surface thereof, a plurality of slots formed in saidface member at the point where said ledge and groove are formed, anda'ribbon of soft rubber having a plurality of lugs integrally formedthereon, said ribbon being disposed in the groove formed in the rearsurface of said face member and said lugs projecting through said slotsformed in said face member, each of said lugs being adapted to fit in aslot in a tooth and approximating said slot in width.

13. A carding device for artificial teeth comprising a body portion uponwhich teeth are adapted to be mounted, means for mounting the teeth onsaid body portion, said means comprising a plurality of lugs whichproject from said body portion, said lugs being formed of soft rubbercontaining a lubricant to facilitate application of teeth thereto andremoval of teeth therefrom.

DAVID E. EVANS.

